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Method for extracting natural food antioxidant from areca catechu leaves

A technology of natural food and betel leaf, which is applied in the field of food additives, can solve the problems of long extraction time, complicated operation, and low extraction rate of antioxidants, and achieve the effects of high development and application value, easy availability of raw materials, and high application value

Inactive Publication Date: 2018-06-05
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In response to this situation, the purpose of the invention is to provide a method for extracting natural food antioxidants from betel nut leaves, which can solve the problem of long extraction time, low extraction rate, high cost, and heavy pollution of traditional polyphenolic compound antioxidant extraction methods. , complex operation and other problems, and the obtained polyphenolic compounds have high anti-oxidation performance and good safety

Method used

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  • Method for extracting natural food antioxidant from areca catechu leaves
  • Method for extracting natural food antioxidant from areca catechu leaves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Take the leaves of the betel nut tree with good growth and no pests and diseases, wash the soil, oil, insects and other impurities on the leaves with clean water, put them in a double-cone rotary vacuum dryer, and dry them at 80 °C for 15 minutes to remove the surface. Moisture and part of the moisture in the interior are then added to the leaf slicer, pulverized at a 2300r / min cutter head revolution, sieved, and 20-50 mesh betel leaf granules are taken for later use; 2kg hydrochloric acid, 50kg ethanol and 48kg water are mixed , prepare an acidic alcohol solution, add it to the inclined cone multi-energy extraction tank, then add betel leaf particles for soaking, adjust the stirring speed to 200r / min, and use ultrasonic assisted extraction with a power of 1000W and a frequency of 80Hz. Under the action, polyphenols can generate salts to speed up the dissolution in ethanol, while ultrasonic waves can destroy the cell walls of plants, expose the active substances in the c...

Embodiment 2

[0039] Take the leaves of betel nut trees with good growth and no pests and diseases, wash the soil, oil stains, insects and other impurities on the leaves with clean water, put them in a vacuum oven, and dry them at 70 ° C for 12 minutes to remove the surface moisture and part of the moisture inside. , then add it to the leaf slicer, crush it with the rotation speed of the cutter head at 2500r / min, sieve, and take 20-50 mesh betel leaf granules for later use; 1kg phosphoric acid, 40kg glycerol and 59kg water are mixed to form an acidic solution. The alcohol solution was added into the straight-cone multi-energy extraction tank, and then the betel leaf granules were added for soaking. Phenolic substances can generate salts to speed up the dissolution in glycerol, while ultrasonic waves can destroy the cell walls of plants, expose active substances in cells, and promote direct contact between active substances and acidic alcohol solution. The extraction time is 2h; The centrifu...

Embodiment 3

[0042] Take the leaves of smokeless betel nut trees with good growth and no pests and diseases, wash the soil, oil, insects and other impurities on the leaves with clean water, put them in a vacuum rake drying cabinet, and dry them at a temperature of 65 ° C for 15 minutes to remove the surface moisture and other impurities. Part of the moisture in the interior is then added to the leaf slicer, crushed at a 2350r / min cutter head revolution, sieved, and 20-50 mesh betel leaf granules are taken for later use; 2kg hypoiodic acid, 46kg sec-butanol and 52kg Mix with water, prepare an acidic alcohol solution, add it to the inclined cone multi-energy extraction tank, then add betel leaf particles for soaking, adjust the stirring speed to 250r / min, and use ultrasonic assisted extraction with a power of 700W and a frequency of 60Hz. Under the action of hypoiodic acid, polyphenols can generate salts and accelerate their dissolution in sec-butanol, while ultrasonic waves can destroy the c...

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Abstract

The present invention belongs to the technical field of food additives and provides a method for extracting a natural food antioxidant from areca catechu leaves. The method is as follows: the areca catechu leaves are washed, the washed areca catechu leaves are dried, the dried areca catechu leaves are crushed, then the crushed areca catechu leaves are mixed with acid substances, alcohol substancesand water, the mixture is added into an extraction tank for ultrasonic-assisted extraction to obtain an extract, then the extract is concentrated, and the concentrated extract is infrared-ray dried to obtain the natural food antioxidant. Compared with the traditional method, the extraction method is short in time and high in extraction rate. The obtained polyphenolic compounds are all derived from natural ingredients, good in antioxidant performance, good in medical performance, and free of toxic and side effects. Besides, the raw materials in the whole extraction method are easily available,the processes are simple, the costs are relatively low, pollution is small, and the method has certain development and application value and can be popularized and applied.

Description

technical field [0001] The invention belongs to the technical field of food additives, and provides a method for extracting natural food antioxidants from betel leaves. Background technique [0002] Polyphenols refers to the collective name of a group of chemical substances in plants. It is named after containing multiple phenolic groups. It can be used as an excellent antioxidant resource. In the whole plant kingdom, it contains polyphenols or phenolic compounds and their derivatives up to 6500. These are secondary by-products in the process of plant metabolism, which exist in many common fruits and vegetables, and are the most antioxidant substances that people consume from food every day. In addition to good antioxidant functions, polyphenols also have the functions of strengthening blood vessel walls, promoting gastrointestinal digestion, lowering blood lipids, enhancing human immunity, preventing arteriosclerosis, thrombosis, diuresis, lowering blood pressure, and inhib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L3/3472
CPCA23L3/3472
Inventor 陈庆司文彬
Owner CHENDU NEW KELI CHEM SCI CO LTD
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